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Table 3 Comparison of scores of NI competency and its dimensions between the intervention and control groups at pretest and posttest

From: Improving the informatics competency of critical care nurses: results of an interventional study in the southeast of Iran

Variables Groups Pre test
M ± SD
Post test
M ± SD
Mean difference Size effect (Cohen d) Statistic ta &
p
Informatics competency total Intervention
Control
Statistic tb &
p
Effect size (Cohen d)
78.79 ± 26.52
82.69 ± 19.29
t = − 0.45
p = 0.65
0.14
114.29 ± 20.68
81.76 ± 17.99
t = 6.54
p = 0.001
1.57
35.5
− 0.93
1.33
0.044
t = 7.71
p = 0.001
t = − 1.39
p = 0.25
Computer literacy Intervention
Control
Statistic tb &
p
Effect size (Cohen d)
28.46 ± 10.28
28 ± 8.27
t = 0.194
p = 0.85
0.04
39.70 ± 6.78
28.03 ± 8.32
t = 6.05
p = 0.001
1.72
11.24
0.03
1.09
0.05
t = 7.06
p = 0.001
t = 0.37
p = 0.71
Informatics literacy Intervention
Control
Statistic tb &
p
Effect size (Cohen d)
33.51 ± 11.45
34.70 ± 8.33
t = − 9.42
p = 0.67
0.10
48.77 ± 9.46
34.43 ± 7.79
t = 6.44
p = 0.001
1.51
15.26
− 0.27
1.33
0.03
t = 6.93
p = 0.001
t = − 1.39
P = 0.30
Informatics management skills Intervention
Control
Statistic tb &
p
Effect size (Cohen d)
17.80 ± 6.78
19.88 ± 5.21
t = − 1.27
p = 0.27
0.30
25.80 ± 5.72
19.30 ± 5.40
t = 4.55
p = 0.001
1.13
8.00
− 0.58
1.17
0.11
t = 7.80
p = 0.001
t = 1
p = 0.32
  1. a Paired t-test
  2. b Independent t-test